HandlerThread的应用实战

1.当你频繁需要new Thread去操作一个耗时操作的时候,可以考虑使用HandlerThread来优化线程创建以及销毁的消耗

    private HandlerThread trackerThread;
    private Handler trackerHandler;

2. 准备工作

   
    private void openTrackerThread() {
           if (this.trackerThread != null) {
               this.trackerThread.quit();
           }
           this.trackerThread = new HandlerThread("Tracker Thread");
           this.trackerThread.start();
           this.trackerHandler = new Handler(this.trackerThread.getLooper());

       }

       private void closeTrackerThread() {
           if (this.trackerHandler != null) {
               this.trackerHandler.post(new Runnable() {
                   public void run() {
                       trackerThread.quit();
                   }
               });
           }
       }

3. 当耗时任务来了,直接postRunnable(),将耗时任务扔到之前创建好的线程中去

this.trackerHandler.post(new Runnable() {
               public void run() {
               //耗时操作
               }